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Posted to oak-issues@jackrabbit.apache.org by "Marcel Reutegger (JIRA)" <ji...@apache.org> on 2013/03/04 11:45:38 UTC

[jira] [Created] (OAK-665) Excessive MK.nodeExists() calls with many child nodes

Marcel Reutegger created OAK-665:
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             Summary: Excessive MK.nodeExists() calls with many child nodes
                 Key: OAK-665
                 URL: https://issues.apache.org/jira/browse/OAK-665
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: core
    Affects Versions: 0.6
            Reporter: Marcel Reutegger


The number of calls to MK.nodeExists() go up excessively once a node reaches KernelNodeState.MAX_CHILD_NODE_NAMES.

There are a *lot* of repeated calls to MK.nodeExists() for the same path. E.g. using the test from OAK-643, the nodeExists() call start to spike once MAX_CHILD_NODE_NAMES is reached. Adding another 100 child nodes then resulted in 400 successive calls to "/testRoot/test4/oak:index" and many more calls to other paths.

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